S2 Femoral Nail Compression Operative Technique - Stryker

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Introduction & Features Implant Features Over the past decades antegrade femoral nailing has become the treatment of choice for most femoral shaft fractures. The option of dynamic and apposition/compression locking modes has expanded the use of intramedullary nails. Stryker Osteosynthesis has created a new generation locking nail system, that brings together the benefits and capabilities of past nailing systems to create a single, integrated surgical resource for the fixation of femoral fractures. The S2 Femoral Nail, Compression combines static, dynamic and apposition/compression locking mode options. Furthermore, the S2 Femoral Nail, Compression offers the competitive advantages of: • Using the same nail for left or right side • Accommodating reamed or unreamed procedures • Providing a Distal Guided Locking option (with the S2 Distal Targeting Device) Through the development of a common, streamlined and intuitive surgical approach, both in principle and in detail, the S2 Femoral Compression Nailing System offers significantly increased speed and functionality for the treatment of fractures as well as simplifying the training requirements for all personnel involved. The S2 Femoral Nail, Compression is the realization of superior biomechanical intramedullary stabilization using small calibre, strong, cannulated implants for the fixation of the Femur. Various locking modes can be chosen according to the fracture type. In addition to static locking, a controlled dynamization with rotational stability is optional. For some indications, a controlled apposition/compression of bone fragments can be applied by introducing a Compression Screw through the proximal end of the nail. The Compression Screw is pushed against the Partially Threaded Locking Screw (Shaft Screw) which has been positioned in the oblong hole, drawing either the distal or the proximal segment towards the fracture site. In stable fractures, this has the biomechanical advantage of creating active circumferential compression to the fracture site, transferring axial load to the bone and reducing the function of the nail as a load bearing device (1). This ability to transfer load back to the bone can reduce the incidence of implant failure secondary to fatigue. Typical statically locked nails function as load bearing devices, and failure rates in excess of 20% have been reported (2). The beneficial effect of apposition/ compression in treating long-bone fractures in cases involving transverse and short oblique fractures that are axially stable is well documented (3,4). Common 5mm cortical screws are designed to simplify the surgical procedure and promote a minimally invasive approach. • Fully Threaded Locking Screws are available for regular locking procedures. • Partially Threaded Locking Screws (Shaft Screws) are designed if apposition/compression is applied. A Compression Screw is designed to close the fracture site. End Caps are available in various sizes to provide an improved fit for every indication and prevent bony or soft tissue ingrowth into the proximal threads of the nail. All implants of the S2 Femoral Compression Nailing System are made of Stainless Steel (316LVM). The S2 Femoral Nails, Compression are cannulated, not slotted and have a fluted profile for an optimal bending stiffness. In addition, two longitudinal grooves (one on each side of the nail), between the 2 M/L Distal Locking Holes, are designed for the Distal Guided Locking Mode technique (via S2 Distal Targeting Device). The main principle of this technique is based on easy nail detection with a Probe inserted into this groove. The groove is used to further guide the Probe into the Locking Hole. For detailed information about Distal Guided Locking Mode technique, please refer to the S2 Distal Targeting Device – OP Technique, REF B1000012. See the detailed chart on the next page for design specifications and size offering. 4
Introduction & Features S2 Femoral Nail, Compression Diameter Sizes 9−14mm 260−480mm 35mm 45mm 55mm Compression Range Total Length of Slot: 15mm Less Screw Diameter (−): 5mm Maximum Movement of Screw: 10mm S2 Locking Screws 5.0mm Fully Threaded Locking Screws L = 25−120mm 5.0mm Partially Threaded Locking Screws (Shaft Screws) L = 25−120mm R = 3000mm antecurvature radius Note: Screw length is measured from the top of the head to the tip S2 Compression Screw 30mm S2 End Caps 10mm Standard +5mm +10mm +15mm 5
Page 1 and 2: S2 Femoral Nail Compression Operati
Page 3: Contents Page 1. Introduction & Fea
Page 7 and 8: Indications & Relative Contraindica
Page 9 and 10: Operative Technique Patient Positio
Page 11 and 12: Operative Technique Entry Point The
Page 13 and 14: Operative Technique Nail Selection
Page 15 and 16: Operative Technique The Slotted Ham
Page 17 and 18: Operative Technique Note: The Targe
Page 19 and 20: Operative Technique When the Drill
Page 21 and 22: Operative Technique End Cap Inserti
Page 23 and 24: Operative Technique The Long Tissue
Page 25 and 26: Operative Technique Nail Removal Na
Page 27 and 28: Ordering Information - Implants 5mm
Page 29 and 30: Ordering Information - Instruments
Page 31 and 32: Ordering Information - Instruments

S2 Femoral Nail Compression Operative Technique - Stryker

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